Osi Umenyiora yesterday ended a holdout that began Friday when he did not report to training camp, as he arrived at the Giants practice facility around 4 p.m.

But this does not mean all is forgiven. Umenyiora said general manager Jerry Reese had reneged on his promise to either produce a new contract or else trade him to a team that will. That claim was part of Umenyiora’s sworn affidavit in the anti-trust lawsuit against the league.

Umenyiora has two years totaling $7.1 million remaining on his contract, and the Giants have shown no interest in reworking his deal.

Asked if he was surprised that the Giants did not reach out in any way to try to satisfy Umenyiora, Agnone said, “Very surprised, surprised by the whole situation. But I shouldn’t be.”

Umenyiora is on the reserve/did not report list and thus could not participate in last night’s practice. Giants coach Tom Coughlin said Umenyiora arrived too late to take a physical — he’s coming off offseason hip surgery.

“I didn’t really spend an awful lot of time talking with him,” Coughlin said. “I asked him how he was doing, he said fine.”

No one knows how this plays out. Umenyiora might take the field and keep his issues with Reese to himself or this could evolve into a full-blown controversy.

“It’s not what you would like,” Coughlin said. “You’d like everybody to be in a great frame of mind. I’d like him to come in, I’d like him to be excited about being a Giant.”

The per-day fine for holding out is $30,000, and Agnone said if the Giants levy that fine on Umenyiora it will be disputed.

“I will challenge it,” Agnone said. “The union just recertified and fines have to be agreed upon by the union and management.”

Justin Tuck, Umenyiora’s friend and linemate, spoke with Umenyiora yesterday morning and, though he wouldn’t reveal the advice he offered, it is a safe assumption Tuck lobbied for Umenyiora to report to camp and try settle his differences with Reese without holding out.

“I don’t think Osi’s angry,” Tuck said. “I think he realizes this is a business, and he’s doing what he feels is best for him. My biggest concern is he doesn’t do something that’s going to hurt Osi. We all have been in situations where we wish we could take stuff back. Osi’s a smart guy, he knows what he’s doing.”